Figure 3. A in South American electric knifefishes of the genus Archolaemus (Ostariophysi, Gymnotiformes): undetected diversity in a clade of rheophiles

Figure 3. A, Archolaemus ferreirai sp. nov., holotype, female, 183 mm total length, INPA 3757; Brazil, Roraima, Rio Mucajaí, Cachoeira Paredão 2 (approximately 02°57′N, 061°27′W); B, Archolaemus ferreirai sp. nov., paratype, male, 342 mm total length, INPA 36379; Brazil, Roraima, Rio Mucajaí, Cachoeira Paredão 2 (approximately 02°57′N, 061°27′W).